.page-faq {
  --faq-panel-bg: linear-gradient(152deg, rgba(43, 27, 82, 0.6), rgba(16, 26, 61, 0.52));
  --faq-soft-bg: rgba(16, 26, 61, 0.46);
  --faq-num-bg: rgba(226, 96, 63, 0.16);
  --faq-num-line: rgba(226, 96, 63, 0.46);

  position: relative;
  padding-top: 100px;
  padding-bottom: 56px;
}

.page-faq .faq-crumbs {
  margin-bottom: 18px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--text-strong);
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 48ch;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero-card {
  margin-top: 34px;
  padding: 24px;
  border-radius: var(--radius-m);
}

.page-faq .faq-hero-card-title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-5);
  line-height: 1.4;
  color: var(--text-strong);
}

.page-faq .faq-hero-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .faq-hero-list li {
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-3);
  line-height: 1.65;
  color: var(--text);
}

.page-faq .faq-hero-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--neon-cyan);
  box-shadow: 0 0 10px rgba(69, 224, 210, 0.75);
}

.page-faq .faq-hero-foot {
  margin: 16px 0 0;
  font-size: var(--fs-2);
  line-height: 1.72;
}

/* ---------- 内容主干与纵向轨道 ---------- */
.page-faq .faq-body {
  position: relative;
  margin-top: 28px;
}

.page-faq .faq-sec-head {
  max-width: 68ch;
}

.page-faq .faq-index-head {
  margin-bottom: 24px;
}

.page-faq .faq-sec-head h2 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(23px, 3.1vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  color: var(--text-strong);
}

.page-faq .faq-sec-head p {
  margin: 12px 0 0;
}

/* ---------- 图片容器 ---------- */
.page-faq .faq-figure {
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--orbit-indigo);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .faq-index-figure {
  margin: 0;
}

.page-faq .faq-steps-figure {
  margin: 30px 0 0;
}

/* ---------- 现象索引条 ---------- */
.page-faq .faq-symbar {
  position: sticky;
  top: 76px;
  z-index: 8;
  margin-top: 26px;
  padding: 11px 0;
  background: linear-gradient(180deg, rgba(6, 10, 28, 0.96), rgba(6, 10, 28, 0.78));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.page-faq .faq-symbar-inner {
  display: flex;
  align-items: center;
  gap: 9px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-symbar-inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-symbar-label {
  flex: 0 0 auto;
  padding-right: 11px;
  margin-right: 2px;
  border-right: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  white-space: nowrap;
}

.page-faq .faq-symbar .index-tag {
  flex: 0 0 auto;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-symbar .index-tag:hover,
.page-faq .faq-symbar .index-tag:focus-visible {
  color: var(--space-void);
  background: var(--neon-cyan);
  border-color: var(--neon-cyan);
}

/* ---------- 七步排查 ---------- */
.page-faq .faq-steps {
  padding-top: 44px;
}

.page-faq .faq-step-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: faqstep;
}

.page-faq .faq-step {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--faq-panel-bg);
  overflow: hidden;
  transition: border-color 0.24s ease, transform 0.24s ease;
}

.page-faq .faq-step:hover {
  border-color: var(--line-cyan);
}

.page-faq .faq-step .panel-trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 15px 16px;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: var(--text-strong);
}

.page-faq .faq-step .panel-trigger:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: -2px;
}

.page-faq .faq-step .panel-index {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 11px;
  background: var(--faq-num-bg);
  border: 1px solid var(--faq-num-line);
  color: var(--signal-red);
  font-family: var(--font-mono);
  font-size: var(--fs-2);
  letter-spacing: 0.04em;
}

.page-faq .faq-step-main {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.page-faq .faq-step-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-4);
  line-height: 1.35;
  color: var(--text-strong);
}

.page-faq .faq-step-brief {
  font-size: var(--fs-2);
  line-height: 1.6;
  color: var(--text-dim);
}

.page-faq .faq-step .panel-caret {
  flex: 0 0 auto;
  margin-left: auto;
}

.page-faq .faq-step .panel-body {
  display: block;
  border-top: 1px solid var(--line);
}

.page-faq .faq-step .panel-body[hidden] {
  display: none;
}

.page-faq .faq-step .panel-body-inner {
  padding: 14px 16px 18px 66px;
  font-size: var(--fs-3);
  line-height: 1.78;
  color: var(--text);
}

.page-faq .faq-step .panel-body-inner p {
  margin: 0;
}

/* ---------- 加载问题 ---------- */
.page-faq .faq-slow-grid {
  margin-top: 28px;
}

.page-faq .faq-slow-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--faq-soft-bg);
  transition: border-color 0.24s ease;
}

.page-faq .faq-slow-card:hover {
  border-color: var(--line-cyan);
}

.page-faq .faq-slow-card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-4);
  line-height: 1.4;
  color: var(--text-strong);
}

.page-faq .faq-slow-card p {
  margin: 10px 0 0;
  font-size: var(--fs-3);
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 更新包下载 ---------- */
.page-faq .faq-pack-list {
  list-style: none;
  counter-reset: pack;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-pack-list li {
  counter-increment: pack;
  position: relative;
  padding: 18px 20px 18px 60px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--faq-soft-bg);
}

.page-faq .faq-pack-list li::before {
  content: counter(pack, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: var(--fs-3);
  letter-spacing: 0.06em;
  color: var(--neon-cyan);
}

.page-faq .faq-pack-list h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-4);
  line-height: 1.4;
  color: var(--text-strong);
}

.page-faq .faq-pack-list p {
  margin: 8px 0 0;
  font-size: var(--fs-3);
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 需要人工介入 ---------- */
.page-faq .faq-stop-grid {
  margin-top: 28px;
}

.page-faq .faq-stop-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-stop-list li {
  padding: 13px 16px;
  border-left: 2px solid var(--faq-num-line);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: linear-gradient(90deg, rgba(226, 96, 63, 0.11), rgba(226, 96, 63, 0) 78%);
  font-size: var(--fs-3);
  line-height: 1.7;
  color: var(--text);
}

.page-faq .faq-stop-aside {
  margin-top: 22px;
  padding: 24px;
  border-radius: var(--radius-m);
}

.page-faq .faq-stop-aside-title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-5);
  color: var(--text-strong);
}

.page-faq .faq-stop-mail {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-3);
  letter-spacing: 0.02em;
  color: var(--warm-gold);
  word-break: break-all;
}

.page-faq .faq-stop-aside-note {
  margin: 14px 0 0;
  font-size: var(--fs-2);
  line-height: 1.72;
}

.page-faq .faq-stop-aside .btn {
  margin-top: 20px;
}

/* ---------- 联系前准备 ---------- */
.page-faq .faq-prepare-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-prepare-list li {
  display: grid;
  gap: 6px;
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: var(--faq-soft-bg);
}

.page-faq .faq-prepare-key {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--warm-gold);
}

.page-faq .faq-prepare-val {
  font-size: var(--fs-3);
  line-height: 1.7;
  color: var(--text);
}

/* ---------- 相关入口 ---------- */
.page-faq .faq-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-more-label {
  margin-right: 4px;
  font-size: var(--fs-2);
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

.page-faq .faq-more .index-tag {
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-faq .faq-more .index-tag:hover,
.page-faq .faq-more .index-tag:focus-visible {
  color: var(--space-void);
  background: var(--neon-cyan);
  border-color: var(--neon-cyan);
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 900px) {
  .page-faq {
    padding-top: 116px;
    padding-bottom: 80px;
  }

  .page-faq .faq-hero-card {
    margin-top: 8px;
    padding: 28px;
  }

  .page-faq .faq-index-head {
    max-width: 60ch;
    margin-bottom: 30px;
  }

  .page-faq .faq-symbar {
    top: 84px;
    margin-top: 34px;
    padding: 13px 0;
  }

  .page-faq .faq-symbar-inner {
    gap: 11px;
  }

  .page-faq .faq-steps {
    padding-top: 56px;
  }

  .page-faq .faq-step .panel-trigger {
    padding: 18px 22px;
    gap: 18px;
  }

  .page-faq .faq-step .panel-body-inner {
    padding: 16px 22px 22px 76px;
  }

  .page-faq .faq-slow-card {
    padding: 24px;
  }

  .page-faq .faq-pack-list li {
    padding: 20px 24px 20px 68px;
  }

  .page-faq .faq-pack-list li::before {
    left: 22px;
    top: 20px;
  }

  .page-faq .faq-stop-aside {
    margin-top: 0;
    padding: 28px;
    position: sticky;
    top: 150px;
  }

  .page-faq .faq-prepare-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .faq-body::before {
    content: "";
    position: absolute;
    top: 8px;
    bottom: 0;
    left: max(16px, calc(50% - 610px));
    width: 1px;
    pointer-events: none;
    background: linear-gradient(180deg, rgba(69, 224, 210, 0) 0%, var(--line-cyan) 10%, var(--line-cyan) 90%, rgba(69, 224, 210, 0) 100%);
    animation: faqRailBreath 20s ease-in-out infinite;
  }
}

@keyframes faqRailBreath {
  0%,
  100% {
    opacity: 0.35;
  }
  50% {
    opacity: 0.6;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-body::before {
    animation: none;
    opacity: 0.45;
  }

  .page-faq .faq-step,
  .page-faq .faq-slow-card {
    transition: none;
  }
}